Helicore Cello A String

D'Addario Helicore Strings Helicore violin strings are a favorite with advancing students and professionals alike! Made from stranded steel, Helicores combine the strength and direct purity and brilliance of steel with the soft feel and warmer tone of a rope core. Very durable and long lasting, and totally dependable for the most demanding conditions.  Instrument: Cello String Type: A Size: 1/4 - 4/4 Gauge: Medium A String: Titanium wound over a steel core String Tonal Profile: